Stim-Lab provides a wide range of research and testing services for drilling, cementing, completion and stimulation design. It offers a wide range of services, such as fracture acidizing tests, completion engineering, drilling fluid evaluations, and perforation damage assessment and cleanup. It also offers a variety of other services that include fracture design classes, hydraulic fracturing, large-scale testing and on-site quality control. Its areas of expertise include coal technology, reservoir analysis, rock mechanics and conductivity. It is a division of the Core Lab that provides patented reservoir description, production enhancement and reservoir management services for the global petroleum industry. Stim-Lab is located in Duncan, Okla.